Who Are More Psychotic? Swifties or Beliebers?

Serious question: did Beatles fans get this insane when someone mocked their favorite rockers? The last few days haven't been good for Swifties (Taylor Swift fans) or Beliebers (Justin Bieber fans).

At the Golden Globes earlier this week, Tina Fey made a hilarious swipe at the teen star. ComplexPopCulture delves into the spat:

The "controversy" here (that word is used lightly because this is notremotely a controversy) all began last year, when Fey and Poehler first hosted the Golden Globes and, in a joke on stage, said that Swift (who was in the audience) should take some time to focus on herself rather than dating around. It was a lighthearted jab like most jokes at awards shows, but apparently Swift didn't see it that way—in an interview a month later, Swift commented the following: "You know, Katie Couric is one of my favorite people, because she said to me she had heard a quote that she loved, that said, 'There’s a special place in hell for women who don’t help other women.'" So, she basically insinuated that there's a special place in hell for Tina Fey and Amy Poehler. Yikes.

Fast-forward to last night. Swift was, once again, an attendee of the event, and the subject came up at one point when Poehler was announced as the winner of best actress in a TV comedy: As Fey congratulated Poehler on the win, she joked, "There's a special place in hell for you."

So, of course, now Taylor Swift fans think that Tina Fey is the worst person alive, and have been launching a crusade against her on Twitter.

And on the Justin Bieber front, he just can't seem to stay out of trouble for more than a few days at a time. This time, after egging a multi-million dollar mansion, causing thousands of dollars in damages, Bieber may even be vulnerable to deportation (fingers crossed!). CW star Jared Padalecki tweeted earlier this week about the incident:

Padalecki is now incurring the wrath of the Beliebers, receiving countless screeching death threats from Bieber's legions of fans.

What is it about Swift and Bieber that makes their fans this devoted, bordering on psychotic? Is this a new phenomenon or were teenyboppers always homicidal? Can parents somehow encourage their teens to adjust their priorities and channel their energies into a more constructive hobby?